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Consolidated Statements Of Changes In Stockholders' Equity (USD $) In Thousands, except Share data, unless otherwise specified | Preferred Stock [Member] | Common Stock [Member] | Capital Surplus [Member] | Retained Earnings [Member] | Accumulated Other Comprehensive Income (Loss), Net [Member] | Total
--- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2010 | $ 64,203 | $ 38 | $ 171,364 | $ 120,361 | $ 2,597 |
Balance, shares at Dec. 31, 2010 |  | 37,983,027 |  |  |  |
Issuance of additional shares pursuant to various stock plans |  |  | 6 |  |  |
Issuance of additional shares pursuant to various stock plans, shares |  | 10,300 |  |  |  |
Stock-based compensation |  |  | 27 |  |  |
Preferred stock cash dividends accrued (5%) |  |  |  | (837) |  |
Accretion of preferred stock discount | 238 |  |  | (238) |  |
Comprehensive income: |  |  |  |  |  |
Net income |  |  |  | 6,746 |  | 6,746
Other comprehensive income (loss): |  |  |  |  |  |
Change in unrealized gain on securities available for sale, net of tax |  |  |  |  | (164) |
Change in unrealized gain on interest-only strips, net of tax |  |  |  |  | 2 |
Change in unrealized gain (loss) on interest-rate caps, net of tax |  |  |  |  | (7) |
Balance at Mar. 31, 2011 | 64,441 | 38 | 171,397 | 126,032 | 2,428 |
Balance, shares at Mar. 31, 2011 |  | 37,993,327 |  |  |  |
Balance at Dec. 31, 2011 | 119,350 | 78 | 524,644 | 142,909 | 8,958 | 795,939
Balance, shares at Dec. 31, 2011 |  | 77,984,252 |  |  |  |
Issuance of additional shares pursuant to various stock plans |  |  | 81 |  |  |
Issuance of additional shares pursuant to various stock plans, shares |  | 12,139 |  |  |  |
Tax effects of stock plan |  |  |  |  |  |
Stock-based compensation |  |  | 398 |  |  |
Preferred stock cash dividends accrued (5%) |  |  |  | (1,525) |  |
Accretion of preferred stock discount | 344 |  |  | (344) |  |
Comprehensive income: |  |  |  |  |  |
Net income |  |  |  | 23,934 |  | 23,934
Other comprehensive income (loss): |  |  |  |  |  |
Change in unrealized gain on securities available for sale, net of tax |  |  |  |  | (656) |
Change in unrealized gain on interest-only strips, net of tax |  |  |  |  | 2 |
Change in unrealized gain (loss) on interest-rate caps, net of tax |  |  |  |  | (7) |
Balance at Mar. 31, 2012 | $ 119,694 | $ 78 | $ 525,123 | $ 164,974 | $ 8,297 | $ 818,166
Balance, shares at Mar. 31, 2012 |  | 77,996,391 |  |  |  |

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- Definition This element represents the amount of recognized share-based compensation during the period, that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 39 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 64 -Subparagraph b Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A91 + Details
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- Definition Tax benefit associated with any share-based compensation plan other than an employee stock ownership plan (ESOP). The tax benefit results from the deduction by the entity on its tax return for an award of stock that exceeds the cumulative compensation cost for common stock or preferred stock recognized for financial reporting. Includes any resulting tax benefit that exceeds the previously recognized deferred tax asset (excess tax benefits). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 62 + Details
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- Definition Change in accumulated gains and losses from derivative instrument designated and qualifying as the effective portion of cash flow hedges, net of tax effect. The after tax effect change includes an entity's share of an equity investee's increase (decrease) in deferred hedging gains or losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 17, 20 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 121 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(3) Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 24 -Subparagraph b Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 46 + Details
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- Definition Appreciation or loss in value (before reclassification adjustment) of the total of unsold securities during the period being reported on, net of tax. Reclassification adjustments include: (1) the unrealized holding gain or loss, net of tax, at the date of the transfer for a debt security from the held-to-maturity category transferred into the available-for-sale category. Also includes the unrealized gain or loss at the date of transfer for a debt security from the available-for-sale category transferred into the held-to-maturity category; (2) the unrealized gains or losses realized upon the sale of securities, after tax; and (3) the unrealized gains or losses realized upon the write-down of securities, after tax. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 17, 22 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 13 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(3) Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 24 -Subparagraph b + Details
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